Started drawing this last month and I guess I stopped around 3 weeks in the middle. Took this and completed it last week probably in two sittings straight. I took and continued with this one because I didn’t want to spend time on anything else.
This is a half way progress shot of it. More progress shots available on my Instagram highlight if you are interested – https://www.instagram.com/stories/highlights/18032846416092554/
creativentechno 
Wow! The three dimensional effect is brought out well. I know how we get lost in time while immersing ourself in an art work dealing with details as this. Keep doing!
Thank you!
Yes, details take a lot of time but looking at the overall result gives the satisfaction.